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1、BRITISH STANDARD BS EN ISO 10846-3:2002 Incorporating Corrigendum No. 1 Acoustics and vibration Laboratory measurement of vibro-acoustic transfer properties of resilient elements Part 3: Indirect method for determination of the dynamic stiffness of resilient supports for translatory motion The Europ
2、ean Standard EN ISO 10846-3:2002 has the status of a British Standard ICS 17.140.01 ? BS EN ISO 10846-3:2002 This British Standard, having been prepared under the direction of the Health and Environment Sector Policy and Strategy Committee, was published under the authority of the Standards Policy a
3、nd Strategy Committee on 9 July 2002 BSI 3 April 2003 ISBN 0 580 39887 0 National foreword This British Standard is the official English language version of EN ISO 10846-3:2002. It is identical with ISO 10846-3:2002. The UK participation in its preparation was entrusted by Technical Committee EH/1,
4、Acoustics, to Subcommittee EH/1/4, Machinery noise, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this
5、 document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a cont
6、ract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals f
7、or change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a b
8、lank page, pages 1 to 38, the Annex ZA page and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 14434 Corrigendum No. 1 3 April 2003 Correction to EN ISO foreword page and addition
9、of the Annex ZA page EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 10846-3 June 2002 ICS 17.140.01 English version Acoustics and vibration - Laboratory measurement of vibro- acoustic transfer properties of resilient elements - Part 3: Indirect method for determination of the dynamic stiff
10、ness of resilient supports for translatory motion (ISO 10846-3:2002) Acoustique et vibrations - Mesurage en laboratoire des proprits de transfert vibro-acoustique des lments lastiques - Partie 3: Raideur dynamique en translation des supports lastiques (Mthode indirecte) (ISO 10846- 3:2002) This Euro
11、pean Standard was approved by CEN on 29 May 2002. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references conce
12、rning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own la
13、nguage and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, S
14、weden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Membe
15、rs. Ref. No. EN ISO 10846-3:2002 E CORRECTED 2003-03-19 Foreword This document (EN ISO 10846-3:2002) has been prepared by Technical Committee ISO/TC TC 43 “Acoustics“ in collaboration with Technical Committee CEN/TC 211 “Acoustics “, the secretariat of which is held by DS. This European Standard sha
16、ll be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2002, and conflicting national standards shall be withdrawn at the latest by December 2002. According to the CEN/CENELEC Internal Regulations, the national standards
17、 organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsem
18、ent notice The text of the International Standard ISO 10846-3:2002 has been approved by CEN as a European Standard without any modifications. NOTE Normative references to International Standards are listed in Annex ZA (normative). EN ISO 108463:2002 Reference number ISO 10846-3:2002(E) INTERNATIONAL
19、 STANDARD ISO 10846-3 First edition 2002-06-01 Acoustics and vibration Laboratory measurement of vibro-acoustic transfer properties of resilient elements Part 3: Indirect method for determination of the dynamic stiffness of resilient supports for translatory motion Acoustique et vibrations Mesurage
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25、 02 av leT. 4 + 10 947 22 1 11 xaF0 947 22 14 + 9 74 E-mial coirypthgis.oc h Web ww.wiso.ch ii I SO 2002 Allr ithgsr ese devr ii EN ISO 108463:2002 IS-64801 O3:(2002E) I SO 2002 All irthgs ersedevr iii Contents Page Foreword.iv Introduction.v 1 Scope1 2 Normative references2 3 Terms and definitions
26、.3 4 Principles5 5 Requirements for apparatus.6 5.1 Normal translations.6 5.2 Transverse translations10 5.3 Suppression of unwanted vibrations 11 6 Criteria for adequacy of the test arrangement .15 6.1 Frequency range15 6.2 Determination of upper frequency limit f3.16 6.3 Flanking transmission.19 6.
27、4 Unwanted input vibrations20 6.5 Accelerometers21 6.6 Force transducers .21 6.7 Summation of signals .21 6.8 Analysers21 7 Test procedures.21 7.1 Installation of the test elements.21 7.2 Mounting and connection of accelerometers.22 7.3 Mounting and connections of the vibration exciter.22 7.4 Source
28、 signal .22 7.5 Measurements22 7.6 Test for linearity.23 8 Evaluation of test results24 8.1 Evaluation of dynamic transfer stiffness24 8.2 One-third-octave-band values of the frequency averaged dynamic transfer stiffness24 8.3 Presentation of one-third-octave-band results 25 8.4 Presentation of narr
29、ow-band data .25 9 Information to be recorded.26 10 Test report26 Annex A (informative) Transfer stiffness related to rotatory vibration components.28 Annex B (informative) Effect of symmetry on the transfer stiffness matrix .36 Annex C (informative) Static load-deflection curve.37 Bibliography38 ii
30、i EN ISO 108463:2002 IS-64801 O3:(2002E) vi I SO 2002 All irthgs ersedevr Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO te
31、chnical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates close
32、ly with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of technical committees is to prepare International Standards. Draft
33、 International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part o
34、f ISO 10846 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 10846-3 was prepared jointly by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise, and ISO/TC 108, Mechanical vibration and shock. ISO 10846 consists
35、 of the following parts, under the general title Acoustics and vibration Laboratory measurement of vibro-acoustic transfer properties of resilient elements: Part 1: Principles and guidelines Part 2: Dynamic stiffness of elastic supports for translatory motion Direct method Part 3: Indirect method fo
36、r determination of the dynamic stiffness of resilient supports for translatory motion Part 4: Dynamic stiffness of elements other than resilient supports for translatory motion Part 5: Driving point method for determination of the low frequency dynamic stiffness of elastic supports for translatory m
37、otion Annexes A, B and C of this part of ISO 10846 are for information only. iv EN ISO 108463:2002 IS-64801 O3:(2002E) I SO 2002 All irthgs ersedevr v Introduction Passive vibration isolators of various kinds are used to reduce the transmission of vibrations. Examples are automobile engine mounts, r
38、esilient supports for buildings, resilient mounts and flexible shaft couplings for shipboard machinery and small isolators in household appliances. This part of ISO 10846 specifies an indirect method for measuring the dynamic transfer stiffness function of linear resilient supports. This includes re
39、silient supports with non-linear static load-deflection characteristics provided that the elements show an approximate linearity for vibrational behaviour for a given static preload. This part of ISO 10846 belongs to a series of International Standards on methods for the laboratory measurement of vi
40、bro- acoustic properties of resilient elements, which also includes parts on measurement principles and on a direct and a driving point method. ISO 10846-1 provides global guidance for the selection of the appropriate International Standard. The laboratory conditions described in this part of ISO 10
41、846 include the application of static preload, where appropriate. The results of the indirect method are useful for isolators, which are used to reduce the transmission of structureborne sound (primarily frequencies above 20 Hz). The method does not characterize isolators completely, which are used
42、to attenuate low frequency vibration or shock excursions. v EN ISO 108463:2002 INTENRATIONAL TSANDADR IS-64801 O3:(2002E) I SO 2002 All irthgs ersedevr 1 Acoustics and vibration Laboratory measurement of vibro- acoustic transfer properties of resilient elements Part 3: Indirect method for determinat
43、ion of the dynamic stiffness of resilient supports for translatory motion 1 Scope This part of ISO 10846 specifies a method for determining the dynamic transfer stiffness for translations of resilient supports, under specific preload. The method concerns the laboratory measurements of vibration tran
44、smissibility and is called the indirect method. This method is applicable to test elements with parallel flanges (see Figure 1). NOTE 1 Vibration isolators which are the subject of this part of ISO 10846 are those which are used to reduce the transmission of audiofrequency vibrations (structureborne
45、 sound, 20 Hz to 20 kHz) to a structure which may, for example, radiate unwanted fluidborne sound (airborne, waterborne or other). NOTE 2 In practice the size of the available test rig(s) can give restrictions for very small and for very large resilient supports. NOTE 3 Samples of continuous support
46、s of strips and mats are included in the method. Whether or not the sample describes the behaviour of the complex system sufficiently, is the responsibility of the user of this part of ISO 10846. Measurements for translations normal and transverse to the flanges are covered in this part of ISO 10846
47、. Annex A provides guidance for the measurement of transfer stiffnesses which include rotatory components. The method covers the frequency range from f2 up to f3. The values of f2 and f3 are determined by the test set-up and the isolator under test. Typically 20 Hz u f2 u 50 Hz and 2 kHz u f3 u 5 kH
48、z. The data obtained according to the method specified in this part of ISO 10846 can be used for product information provided by manufacturers and suppliers, information during product development, quality control, and calculation of the transfer of vibration through isolators. 1 EN ISO 108463:2002
49、IS-64801 O3:(2002E) 2 I SO 2002 All irthgs ersedevr NOTE 1 When a resilient support has no parallel flanges, an auxiliary fixture should be included as part of the test element to arrange for parallel flanges. NOTE 2 Arrows indicate load direction. Figure 1 Examples of resilient supports with parallel flanges 2 Normative references The following normative documents contain provisions which, through referen